1 /*
2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.jfr.api.event;
27
28 import java.io.IOException;
29 import java.util.List;
30
31 import jdk.jfr.Event;
32 import jdk.jfr.EventType;
33 import jdk.jfr.FlightRecorder;
34 import jdk.jfr.Recording;
35 import jdk.jfr.Registered;
36 import jdk.jfr.consumer.RecordedEvent;
37 import jdk.testlibrary.Asserts;
38 import jdk.testlibrary.jfr.Events;
39
40 /*
41 * @test
42 * @summary Test enable/disable event and verify recording has expected events.
43 * @key jfr
44 * @library /lib/testlibrary
45 * @run main/othervm jdk.jfr.api.event.TestClinitRegistration
46 */
47
48 public class TestClinitRegistration {
49
50 public static void main(String[] args) throws Exception {
51 // Test basic registration with or without auto registration
52 assertClinitRegister(AutoRegisteredEvent.class, true, false);
53 assertClinitRegister(NotAutoRegisterededEvent.class, false, false);
54 assertClinitRegister(AutoRegisteredUserClinit.class, true, true);
55 assertClinitRegister(NotAutoRegisteredUserClinit.class, false, true);
56
57 // Test complex <clinit>
58 assertClinitRegister(ComplexClInit.class, true, true);
59
60 // Test hierarchy
61 assertClinitRegister(DerivedClinit.class, true, true);
62 if (!isClinitExecuted(Base.class)) {
63 Asserts.fail("Expected <clinit> of base class to be executed");
64 }
65
66 // Test committed event in <clinit>
67 Recording r = new Recording();
68 r.start();
69 r.enable(EventInClinit.class);
70 triggerClinit(EventInClinit.class);
71 r.stop();
72 hasEvent(r, EventInClinit.class.getName());
73 }
74
75 private static void assertClinitRegister(Class<? extends Event> eventClass, boolean shouldExist, boolean setsProperty) throws ClassNotFoundException {
76 String className = eventClass.getName();
77 triggerClinit(eventClass);
78 boolean hasEventType = hasEventType(className);
79 boolean hasProperty = Boolean.getBoolean(className);
80 if (hasEventType && !shouldExist) {
81 Asserts.fail("Event class " + className + " should not be registered");
82 }
83 if (!hasEventType && shouldExist) {
84 Asserts.fail("Event class " + className + " is not registered");
85 }
86 if (setsProperty && !hasProperty) {
87 Asserts.fail("Expected clinit to be executed");
88 }
89 if (!setsProperty && hasProperty) {
90 Asserts.fail("Property in clinit should not been set. Test bug?");
91 }
92 }
93
94 private static boolean hasEventType(String name) {
95 for (EventType type : FlightRecorder.getFlightRecorder().getEventTypes()) {
96 if (type.getName().equals(name)) {
97 return true;
98 }
99 }
100 return false;
101 }
102
103 private static void triggerClinit(Class<?> clazz) throws ClassNotFoundException {
104 Class.forName(clazz.getName(), true, clazz.getClassLoader());
105 }
106
107 private static void setClinitExecuted(Class<? extends Event> eventClass) {
108 System.setProperty(eventClass.getName(), "true");
109 }
110
111 private static boolean isClinitExecuted(Class<? extends Event> eventClass) {
112 return "true".equals(System.getProperty(eventClass.getName(), "true"));
113 }
114
115 static class AutoRegisteredEvent extends Event {
116 }
117
118 @Registered(false)
119 static class NotAutoRegisterededEvent extends Event {
120 }
121
122 static class AutoRegisteredUserClinit extends Event {
123 static {
124 setClinitExecuted(AutoRegisteredUserClinit.class);
125 }
126 }
127
128 @Registered(false)
129 static class NotAutoRegisteredUserClinit extends Event {
130 static {
131 setClinitExecuted(NotAutoRegisteredUserClinit.class);
132 }
133 }
134
135 static class Base extends Event {
136 static {
137 setClinitExecuted(Base.class);
138 }
139 }
140
141 static class DerivedClinit extends Base {
142 static {
143 setClinitExecuted(DerivedClinit.class);
144 }
145
146 @Deprecated
147 void myVoidMethod() {
148 }
149 }
150
151 static class ComplexClInit extends Event {
152 static {
153 setClinitExecuted(ComplexClInit.class);
154 }
155 public static final long l = Long.parseLong("7");
156 public static final int i = Integer.parseInt("7");
157 public static final short s = Short.parseShort("7");
158 public static final double d = Double.parseDouble("7");
159 public static final float f = Float.parseFloat("7");
160 public static final boolean b = Boolean.parseBoolean("true");
161 public static final char c = (char) Integer.parseInt("48");
162 public static final String text = "ioio".substring(2);
163 public static final int[] primitivArray = new int[] { 7, 4 };
164 public static final Class<?> Object = ComplexClInit.class;
165
166 static {
167 String text = "";
168 long l = 56;
169 long i = 56;
170 if (i != l) {
171 throw new RuntimeException("unexpected result from comparison");
172 }
173 if (!isClinitExecuted(ComplexClInit.class)) {
174 throw new RuntimeException("Expected clinit flag to be set" + text);
175 }
176 }
177
178 static {
179 try {
180 throw new IllegalStateException("Exception");
181 } catch (IllegalStateException ise) {
182 // as expected
183 }
184 }
185 }
186
187 static class EventInClinit extends Event {
188 static {
189 EventInClinit eventInClinit = new EventInClinit();
190 eventInClinit.commit();
191 }
192 }
193
194 public static void hasEvent(Recording r, String name) throws IOException {
195 List<RecordedEvent> events = Events.fromRecording(r);
196 Events.hasEvents(events);
197
198 for (RecordedEvent event : events) {
199 if (event.getEventType().getName().equals(name)) {
200 return;
201 }
202 }
203 Asserts.fail("Missing event " + name + " in recording " + events.toString());
204 }
205 }